The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1981
Filed:
Dec. 31, 1979
Applicant:
Inventors:
Michel Demange, Le Fayet, FR;
Louis Septier, Le Fayet, FR;
Assignee:
Societe Francaise d'Electrometallurgie-Sofrem, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
7513 / ; 75 80 ;
Abstract
The invention concerns a method of obtaining manganese alloys with an average carbon content by reacting liquid, carbon-containing ferro-manganese in a fluid tight chamber. Oxygen, mixed with a heat regulating gas such as CO.sub.2, air, nitrogen, argon or steam, is introduced and by controlling the discharge of the gaseous effluent, the pressure in the reactor is adjusted between 1.5 and 15 bars, to avoid volatilization of the manganese and a refined ferro-manganese is produced containing 0.5-2% carbon.